Saw guide



Oct. 13,

I J. c. FALLS 1,826,757

SAW GUIDE Filed Aug. 4, 1950 2 Sheets-Sheet 1 v Inventor Attornqy Oct. 13, 1931. J, c FALLS 1,826,757

SM GUIIJE Filed Aug. 4, 1930 2 Sheets-Sheet 2 Inventor By Q0/5261" fluorite Unirsn srA Patented Oct. 13, 19 3 1 'JoHNsoN CONRAD new S I Q U V, i

' ,s w GUIDE jAnplication filed ugu ta, 1930;

The present invention relates to guide adapted particularly for use withcircular saws and comprises principally "a pair of: guidejaws positionedat opposite sldes of the saw at a pointthereof remote from the work and arranged to prevent-vibration 'ofthe'saw during the rapid rot'atio'n thereof.

An important object of the 1' vention is to provide saw guide of this" character in which adjustments may be made to the aw ends of the guide without danger of injury to the workmen by coming into contact with thesaww v j j Another object is to provide meansfor ad justing the saw guide bodily in a direction transversely with respect to the saw blade and also to provide aswinging mounting for the guide whereby to permit'the same to be moved into operative position with respect to saws locatedrat opposite sides of the guide and further embodying means for. securing the guide in either of its opposite positions in order to prevent accidental displacement thereof during the operation of the saw.

A still further object is to provide remov ableinserts for the jaw faces of the guides so that the same may be replaced when worn,

due to constant frictional engagement with 'thesides of the rotating saw.

7 Another object is to provide device of. I this character of a simple and practical construction, which may be installed in operative position upon a saw machine without neces-' sitating any changes 1n the construction or operation thereof which is efficient and reliable inperformance, relatively inexpensive to manufacture and otherwise well adapted for the purposes for which the same is intended.

Other objects and advantages reside in the special construction, combination and arrangement of the various elements forming the invention as moref'ully hereinafter described and claimed, reference being had to the accompanying drawings forming part hereof, wherein like numerals refer to like parts throughout, and in which: i t

Figure 1 is a top plan view ofthe guide in operative position with respect to the saw,

Serial N6. 473,030. I

ed forgattachment tothe saw machinein any suitable-manner in 'a position adjacent the The -basefi is formed intermediate its ends with,a-bearingsupP rtY in which is rotat-F ablymounted ashaft 8, said shaft'being also adapted for longitudinal movement with res spect to the; bearing. On one end of the shaft,- 8 is formeda substantially jaw shaped memher 9, forming one of the element Z f the guide, said jaw gmember being-disposed at right angles; with respect to the shaft and, formed with a bifurcated sectionlO interomcg tion, which comprises-a base member 5 adapt-v mediate'its endsat a, position in longitudinal alinement with the shaft. v e e Between the bifurcations 10 is fitted re- Qfil se o d l w, mb r said j w m me bers being secured for pivotal; movement by f a pin meextending .;through the bifurcated section 10 and reduced section 11.

The-end of thesh-aftv 8o opposlte from jaw member 9 is provided'lwith; a -threaded :bore 14- within which is .threadedly inserted an adjusting screw 15, having its outer end formed into an operatingknob or wheel:16.'

outwardly from the shaft'and in spaced relation from the knob ltl. [a ff: The, portion of the screw disposed between the knob ,16' andjthe' collar 17 is journaled in g support 18, the collar 17 and the 'knob ,16 preventing, longitudinal movement of the screw 1 and accordingly "causing the longitue, dinal-movementof the, shaft S'so as to pro-i vide for the transverse adjustment ofthe: jaw

duced section :l l i formed on; the' inner side i A collar 17. is fixedly secured upon the screw,

for rotation inianopening' forme dyin'abear- 1 end 20 of a lever 21 pivot-ally mounted at one side of the bearing support 7 and disposed in a slotted opening formed in said bearing.

It will be apparent that the eccentric end I 20 may engage the opposite grooves 19 upon a turning movement of the shaft a'half turn,

or one hundred and eighty degrees. Accord. ingly the jaw members 9 and 12 may be turned upon the shaft 8 so as to extend the jaw ends 22 thereof in opposite direction and thus may be disposed in saw guiding position with respect to saws positioned adjacent opposite ends of the base 5.

Supports 23 are carried at opposite ends of the base 5 upon which the jaw members may rest when disposed in theiroppesite positions. The jaw ends 22 of each of the aw members 9 and 12 are disposed in slightly spaced apart relation as clearly illustrated in Figure 1 of the drawings and have their opposed faces formed with recesses within which are fitted inserts 24 projecting outwardly from theopposedfaces of the jaws and arranged in slightly spaced relation from the opposite faces of the saw base.

At the opposite ends of the aw members 9 and 12 is arranged an adjusting'screw 25, the screw being threaded through the end of one of the aw members and engaging the other of the jaw members and adapted to prevent the movement of the jaw ends 22 in, a direction away from each other..

A leaf spring 26 is attached at one end=to one of the jaw members. by screws or the like 27 and with its opposite end arranged in engagement with the other of said jaw members for yieldably urging the members apart.

The ends of the jaws forming the guide are thus adjustably disposed at opposite sides of the saw base, at a point remote from the work so as to prevent vibration in the saw blade during the rapid rotation thereof.

It will be apparent that adjustments of the guide may be made with respect to the saw without the necessity of the hands of the workmen coming into contact with the saw and accordingly the guide may be properly adjusted during the operation of the saw.

It is obvious that my invention is susceptible to various changes and modifications in construction without departing from the spirit ofthe invention or the scope of the appended claim, and I accordingly claim all such forms of the device to which I am en-. titled. 7

Having thus described my invention, what I claim as new is: A sawguide of the class described comprising a base having a bearingpart'thereon, a shaft rotatably and slidably arranged in said bearing part, means at one end of the shaft for moving the same longitudinally, a stationary aw having an intermediate part on one of its sides integrally connected to the other end of the shaft, a movable jaw pivoted intermediate its ends to the opposite side of said stationary aw, saw engaging elements carried by the jaws at one end there-- of, a set screw carried by the opposite end of the stationary jaw and engaging the adjacent end of the movable jaw, said shaft having longitudinally extending grooves therein arranged diametrically opposite each other, a lever hinged to one side of the bearing part and having a cam thereon for engaging either groove to hold the shaft in either one of its two positions and an angle shaped stop at each end of the base having one arm connected with the base and its other arm extending horizontally from the base into the path of movement of the stationary jaw for supporting the jaw in operative position.

In testimony whereof I afii-X my signature.

JOHNSON CONRAD FALLS. 

